Users Guide

8–iWARP Configuration
Configuring iWARP on Linux
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Configuring NFS-RDMA
NFS-RDMA for iWARP includes both server and client configuration steps.
To configure the NFS server:
1. Create an nfs-server directory and grant permission by issuing the
following commands:
# mkdir /tmp/nfs-server
# chmod 777 /tmp/nfs-server
2. In the /etc/exports file for the directories that you must export using
NFS-RDMA on the server, make the following entry:
/tmp/nfs-server *(rw,fsid=0,async,insecure,no_root_squash)
Ensure that you use a different file system identification (FSID) for each
directory that you export.
3. Load the svcrdma module as follows:
# modprobe svcrdma
4. Load the service as follows:
 For SLES, enable and start the NFS server alias:
# systemctl enable|start|status nfsserver
 For RHEL, enable and start the NFS server and services:
# systemctl enable|start|status nfs
5. Include the default RDMA port 20049 into this file as follows:
# echo rdma 20049 > /proc/fs/nfsd/portlist
6. To make local directories available for NFS clients to mount, issue the
exportfs
command as follows:
# exportfs -v
NOTE
For latency applications (send/write), if the perftest version is the latest (for
example,
perftest-3.0-0.21.g21dc344.x86_64.rpm), use the supported
inline size value:
0-128.